A diagram shows a section through the female reproductive system. It was prepared for a health lesson about the route followed by an ovum after it is releas...
Question 1 Report
A diagram shows a section through the female reproductive system. It was prepared for a health lesson about the route followed by an ovum after it is released from an ovary.
(a) Name the parts labelled X, Y and Z. [3]
(b) Describe the route of an ovum from the ovary to the outside of the female body if fertilisation does not occur. [3]
(c) Explain why fertilisation is more likely if sperm are present in the oviduct at the time an ovum is released. [1]
Answer Details
(a) X is an ovary, Y is the uterus, and Z is the vagina. [3]
(b) After release from an ovary, the ovum enters an oviduct, also called a fallopian tube. It moves to the uterus. If fertilisation does not occur, it leaves the body through the vagina with the menstrual flow. [3]
(c) Fertilisation is more likely when sperm are already in the oviduct because the sperm and ovum can meet there, allowing a sperm nucleus to fuse with the ovum nucleus. [1]
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